linux/fs/omfs/file.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * OMFS (as used by RIO Karma) file operations.
 * Copyright (C) 2005 Bob Copeland <[email protected]>
 */

#include <linux/module.h>
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/mpage.h>
#include "omfs.h"

static u32 omfs_max_extents(struct omfs_sb_info *sbi, int offset)
{ … }

void omfs_make_empty_table(struct buffer_head *bh, int offset)
{ … }

int omfs_shrink_inode(struct inode *inode)
{ … }

static void omfs_truncate(struct inode *inode)
{ … }

/*
 * Add new blocks to the current extent, or create new entries/continuations
 * as necessary.
 */
static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
			u64 *ret_block)
{ … }

/*
 * Scans across the directory table for a given file block number.
 * If block not found, return 0.
 */
static sector_t find_block(struct inode *inode, struct omfs_extent_entry *ent,
			sector_t block, int count, int *left)
{ … }

static int omfs_get_block(struct inode *inode, sector_t block,
			  struct buffer_head *bh_result, int create)
{ … }

static int omfs_read_folio(struct file *file, struct folio *folio)
{ … }

static void omfs_readahead(struct readahead_control *rac)
{ … }

static int
omfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
{ … }

static void omfs_write_failed(struct address_space *mapping, loff_t to)
{ … }

static int omfs_write_begin(struct file *file, struct address_space *mapping,
			loff_t pos, unsigned len,
			struct page **pagep, void **fsdata)
{ … }

static sector_t omfs_bmap(struct address_space *mapping, sector_t block)
{ … }

const struct file_operations omfs_file_operations = …;

static int omfs_setattr(struct mnt_idmap *idmap,
			struct dentry *dentry, struct iattr *attr)
{ … }

const struct inode_operations omfs_file_inops = …;

const struct address_space_operations omfs_aops = …;